3976652566813 has 2 divisors, whose sum is σ = 3976652566814. Its totient is φ = 3976652566812.

The previous prime is 3976652566781. The next prime is 3976652566819. The reversal of 3976652566813 is 3186652566793.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3867523426404 + 109129140409 = 1966602^2 + 330347^2 .

It is a cyclic number.

It is not a de Polignac number, because 3976652566813 - 2⁵ = 3976652566781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3976652566819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1988326283406 + 1988326283407.

It is an arithmetic number, because the mean of its divisors is an integer number (1988326283407).

Almost surely, 2^{3976652566813} is an apocalyptic number.

It is an amenable number.

3976652566813 is a deficient number, since it is larger than the sum of its proper divisors (1).

3976652566813 is an equidigital number, since it uses as much as digits as its factorization.

3976652566813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 293932800, while the sum is 67.

The spelling of 3976652566813 in words is "three trillion, nine hundred seventy-six billion, six hundred fifty-two million, five hundred sixty-six thousand, eight hundred thirteen".